Document VEKQ2w17ORyOqO2oxk5Mmm1j

!"! ' 0.1978 TEL (5J6) 275-0900 CABLE- guardcmem-hauppauge TWX Sio 227-0230 '3 ^ f / ; ,f" / 22330 MARCUS BOULEVARD HAUPPAUGE* L. I., N.Y. 11787 cV r April 2, 1976 Mr. R. T. Gottesman Assoc. Dir., R & D Tenneco Chemicals Turner Place, P. 0. Box 2 Piscataway, N. J. 08854 Dear Mr. Gottesman: We are pleased at your interest in AIRefine (a Polycomplex derivative). We are enclosing the preliminary brochure on AIRefine and expect to have a revised one available which will contain additional information specifically in reference to its use for removing organic vapors such as VCM from exhaust streams. Actually, with efficient scrubbers and gas washers, VCM can be taken down to as low as several parts per million from original levels, ranging from 70-150 ppm. Please remember that where acid gases are present, which could neutra lize the normal pH of the AIRefine, and inactivate same, it is advisable to add soda ash to the AIRefine solution, (which is usually employed in an initial concentration of 3% by weight on a recirculating basis). Please contact us if you have any technical questions in the meantime. Sincerely GUARDIAN CHEMICAL CORPORATION ARG:rs Enel. v.__ ' Alfred R. Globus, D.Sc. Director of Research P. S. The AIRefine (concentrate) is $6.95 per gallon in 52 gallon drums, f.o.b, our plant. COLOR!TE 006649 '^'51 A^A TRADEMARK for the removal of pollutants from industrial emissions: NITROGEN OXIDES HYDROGEN SULFIDE SULFUR DIOXIDE AND TRIOXIDE ACID SPRAYS ORGANIC VAPORS FLY ASH and SOOT RADIOACTIVE TRACE ELEMENTS UNBURNED OIL RESIDUES COLORITE 006650 JllRefine TMPC HARK Introduction In these days of ecological awareness and the desire to protect the environment, atmospheric pollution becomes a major problem, for its signs are evident for all to see. The emission of acidic gases of hydrogen sulfide, oxides of nitrogen, coal tar, unburned oils and other hydrocarbons, with their destructive effects upon the nostrils, lungs, and skins of people in the area, as well as upon the surrounding property, have placed the producer of industrial emis sions in the position of having to "either clean up or shut down". It is with the purpose of cleaning up these pollutants to an acceptable level that AIRefine was developed and tested on an industrial scale, demonstrating its ability to react rapidly with a wide range of acid gases (nitrogen oxides, sulfur dioxide or trioxide, hydrogen chloride, chlorine or bromine) to absorb hydrogen sulfide, to remove odorous mercaptans to react with hydrochloric or sulfuric acid spray (as in pickling plants or plating assemblies), to form complexes with oil droplets, unburned kerosene or coal tar, to absorb carbon particles, soot, smoke, fine fly ash, or dust. Thus AIRefine diluted with water (to a 2-5% solution) and sprayed into a gas stream, drawn in through an eductor activated by water or utilized in mechanical washers, can remove one or a multiple of these typical pollutants, so that the air-stream can be discharged with only minimal residual pollution. AIRefine is a straw-colored to golden-yellow liquid, miscible in water in all proportions. Its powerful wetting properties, complexing action upon hydrocarbons, its strong neutralizing action on acid gases and acid compounds, its absorbing power for fine dust, carbon, ash, etc., its complete water solubility and its biodegradability, make it highly effective for treating of industrial gas emissions and air streams COLORITE 006651 f having a high level of noxious pollutants, without becoming a pollutant itself. In a typical test (employing a venturi scrub system) air with a level of 50 ppm of bromine by weight was washed in a mechanical scrubber by means of a 3% aqueous solution of AlRefine with the elimination of almost 99% of the bromine in a single pass, while better than 98% or more of sulfur trioxide can be removed in a single pass. Hydrogen sulfide, sulfur dioxide or nitrogen peroxide are removable to the extent of 95-99% in only one pass through an effective scrubber. Multi-pass washers can eliminate all but traces of the foregoing gases. A fine spray of 3% AIRefine injected directly into a paddle-wheel blower and out through special stainless steel entrainment devices (1) eliminated all but 0.37-0.4 ppm of an original 25 ppm of chlorine gas and (2) protected the blades from the destructive effect of the oxidizing and acidifying power of the chlorine. A fine mist of acid-spray from a plating tank and sent through a primary separator, can be scrubbed by means of a 3% solution of AIRefine in a gas washer to complete neutrality. The resultant air passed over steel plates produced no corrosion effects on the latter. Styrene vapors from fiberglass operations (The emissions contained 250 ppm of styrene.) were reducible to 35 ppm with a single pass through a 2% spray, and to 12 ppm. using the same concentration of solution in an efficient mechanical washer. Dusts containing a small amount of citric acid crystals can be stripped and neutralized by a single or double stage scrubber. Oxides, such as arsenic oxide, titanium dioxide or silica of greater than 1 micron can be stripped from an air stream by means of a 2 stage scrubber utilizing a 3% solution of AIRefine to the extent of 95-99%. Starch dust (explosive) containing 1% of thorium oxide (radioactive) showed 9% explosivity and no detectible radiation level after a 2 stage washing operation with 2% of AIRefine. Solutions of AIRefine can be injected into flue gas at 1200-1400F. as long as the solution is always maintained in excess. Make-up water can be added continuously or intermittently without loss of efficiency but dehydrated AIRefine will tend to decompose if exposed to high temperatures. r COLORITE 006652 From a toxicity standpoint, AI Refine can be classified as safe to handle and store. It exhibits an oral L.D. 50 on mice of greater than 1 gram/kg. Patch tests on humans of a 3% solution of AlRefine demonstrated that the solution was neither a primary irritant nor a sensitizer. Feeding toxicity tests on mice at a rate of greater than 100 mg/Kg. per day for 90 days showed no decrease in growth rate or gross changes on macroscopic examination following autopsy. Some of the physical properties of Al Refine are listed below: Form ................................................................................................ liquid Color ............................................................ straw-color to light amber Odor.................................................................................................... mild pH of a 3% solution .........................................................................10.7 Viscosity (100%) ........................................................................80 cps Viscosity (3%)........................................................................... 17.5 cps Solubility in water.....................................................................complete Biodegradability......................................................................... complete Stability...................................................................................... excellent Flash Point..................................................................................... 300F. IMPORTANT: The information contained herein is believed to be correct, but no guarantee with respect to accuracy, completeness, or results is implied and no liability is assumed. The uses referred to or suggested are listed for purposes of illustration only and it is recommended that sufficient investigation be carried on to establish the suitability of tins product to any particular case. Nothing herein is to be construed as authorizing practice of any invention covered by existing patents without license from the owners thereof or to manufacture or market any products containing this material without conforming to all government regulations which may apply. CrrUABDlAN OhEMICAL 'U OBPOxlATiON 230 Marcus Blvd., Hauppauge, N.V. 11787 (816)273-0900 COLORITE 006653 NEWSFLASHES sarco smelter gets its emission variance--The Puget ound Air Pollution Control Agency has granted a 5-yr ariance to Asarco Inc. (New York) for continued opertion of its Tacoma, Wash., copper smelter at arsenic nd sulfur dioxide emission levels above the agency's filings. Asarco agreed to spend $4.7 million on control quipment during that period, and will additionally in its liquid sulfur dioxide and sulfuric acid plants in rder to recover "the greatest amount" of SO2 from Tgases. However, court challenges could delay implelentation of the plan, and an environmental impact atement might be needed to make the variance legal, ee Chem. Eng., Nov. 10, 1975, p. 118, and Feb. 17, 175, p. 41, for earlier reports on the running fray. ood news and bad news for pesticide makers-- Sandoz, Inc. (East Hanover, N.J.) has won the first gistration from the U.S. Environmental Protection gency (EPA) for a natural virus insecticide, and innds to market it by June or July. Tradenamed Elcar, ie nuclear polyhedrosis virus specifically attacks cot>nbollworms and tobacco budworms. It survives a rel- long 3-7 days, apparently the key to its applias a wettable powder rather than via a moreimplicated delivery system such as microencaplation (Chem. Eng., Jan. 19, pp. 57-59). EPA outlawed most but not all mercury-bearing tsticides. The ban should reduce by 98.5% the nount of mercury entering the environment via pestides, EPA says, and thus mitigate health hazards, tint makers had used 90% of the banned products. Allied Chemical Corp. (Morristown, N.J.) won't activate its Aberdeen, Miss., plant for formulating [irex, a fire-ant insecticide. EPA has challenged Mirex r years because of cancer concern. Allied still disputes is, but says it can no longer justify the time and exnse of defending the product. The U.S. Dept, of Agrulture has been financing Mirex use, and claims ere is no known effective substitute. Tnyl-chloride control news also comes in threes-- A proprietary, non-noble-metal catalyst jointly deloped by Harshaw Chemical Co. (Cleveland, Ohio) id Air Resources, Inc. (Palatine, 111.) stars in the latr's new catalytic incinerator for destroying haloge.ted organics, such as vinyl chloride, which attack nventional catalysts. The fluid-bed unit operates at low 70(TF and *A-s residence time--said to slash ergy use compared with thermal incinerators runng at 1,800-2,000F and 2-s residence. The first comercial unit has started up at Chemetron Corp.'s La trteTFcx., plant, for treating an off-stream of mixed j^B&ted hydrocarbons; the hydrogen chloride r^^Fis recovered. A liquid chemical boasting high affinity for vinyl chloride and other organics has been developed by Guardian Chemical Corp. (Hauppauge, N.Y.) for use in air washers and scrubbers. It derives from the firm's Polycomplex, an oil-spill cleanup agent that reportedly helps strip oil from tar sands, and also spawned an emulsifier touted for water/gasoline/alcohol fuels. A continuous stripping process for cleaning resid ual monomer from polyvinyl chloride resins (and thus abating emissions) will be used by KemaNord in Swe den, the firm says, under one of the first licenses from developer B. F. Goodrich Chemical Co., Cleveland (Chan. Eng., Nov. 24,1975, p. 27). Olin will triple its hydrazine capacity--Anticipating 15-17%) annual growth for hydrazine usage over the next nine years, in the U.S. alone and worldwide, Olin Corp, (Stamford, Conn.) is about ready to start build ing a S25-million plant adjacent to an existing unit at Lake Charles, La. Olin's capacity will reach 30 million lb/yr upon plant completion in 1978. Major hydrazine outlets include rocket fuels, blowing agents, phar maceuticals, pesticides, corrosion inhibitors, and reduc ing agents. Carbide buys another pollution-control business--Just two weeks after announcing acquisition of Westinghouse Electric Corp.'s reverse-osmosis and ultrafil tration technologies (Chem Eng., Feb. 16, p. 44), Union Carbide Corp. (New York) revealed its purchase of li censing rights and assets of W. R. Grace & Co.'s busi ness in ozone generators and systems. Ozonation has been gaining stature as a fill-in for chlorination of wastewaters and potable waters, Carbide says, and meshes especially well with its Unox oxygen-activatedsludge system. Liquid-sulfur-dioxide process is spreading--A lowcost, closed-loop method for recovering liquid SO2 from exhaust gases, developed by Stal Refrigeration AB (Norrkoeping, Sweden), went onstream early this year in a Finnish plant, and will soon serve in a plant going up in Zaire. The maiden installation has been running in Sweden for several years. The technique avoids the usual sequence of absorption of SO; by wa ter- or solvent-scrubbing, stripping, and liquefaction. Instead, a desired portion of SOj-bearing raw gas (e.g., from copper smelting) goes directly to a -70C, atmo spheric-pressure refrigeration train for partial S02 li quefaction; the gas then recycles for blending with the untreated portion, and the mix continues on to a sul furic-acid plant. News Features start on page 53 News Briefs start on page 64 CHEMICAL ENGINEERING MARCH 15, I97ti 51 COLORITE 006654 i i :,i,l 'i